I think there's confusion over consistency and longevity. Obviously if these guys weren't consistent there would be no discussion about the greatest batsman of the era. My response to you was about considering a period of time when the batsmen in question were in their prime (but still a fairly long period, I will get to that) rather than bringing up Tendulkar's current Test batting rating as somehow relevant. By that measure, Tendulkar is better than Lara, Ponting, hell Bradman, because he has a Test batting ranking while all those guys are unranked. I'm sure you'd find that ridiculous, because it is.
I'm talking about comparing players over a sufficiently long peak period (say 10 years or more) and looking at their records. If we say that Lara's peak is from 1993-2005 (12 years, 117 tests, 10900+ runs @ 55, 31 hundreds) and Tendulkar's from 1993-2010 (17 years, 156 tests, 13400+ runs @ 59, 46 hundreds), you can see that Tendulkar's peak lasted longer and he beats Lara by every statistical measure, and there's really nothing to argue there. This is not my opinion, just plain numbers. Based on this evidence, I say Tendulkar was a better batsman than Lara.
Your bring up Warne and Murali's opinion, but they're just that - opinions. What's more, they're just two opinions. These guys made their money from being sensational spinners, not great cricket analysts. And having heard Warne on commentary over the past few months, I'm convinced that his opinion is to be taken with a grain of salt. In any case, I think numbers trump opinions, so this is a moot point.
I think your continual deriding of Murali as a chucker when every scientific test has cleared him doesn't really do a lot to build the credibility of your opinion.
My second point was about who I'd like to watch between the two. This is my opinion and has nothing to do with numbers. Lara had the left hander's natural grace and a extravagance in his strokeplay that was breathtaking. Both Tendulkar and Lara could destroy attacks, but Lara looked a little better. I loved watching Azharuddin because he was an artist. Was he better than Tendulkar? Absolutely not. I love watching Ian Bell because of his lazy, stylish grace. Is he a better batsman than Alastair Cook? Not really (well, maybe on current form). The same way, I liked watching Lara over Tendulkar. Was Lara a better batsman? No.